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| 链斗式挖土掘机 | |||
| 链斗式挖土机 | |||
| 链斗式挖掘机 | |||
| 链斗式挖泥机; 链斗式开沟机 | |||
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| 多斗挖掘机; 链斗式挖土机 | |||
| chain bucket excavator: 4 phrases in 2 subjects |
| Engineering geology | 1 |
| Technology | 3 |
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